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1-40 of 47 Mammals page: 1  | 2
Harris's Antelope Squirrel
Ammospermophilus harrisii

Underside of tail is grayish from mixing of black and white hairs. Back is pale brown to blackish. E… read more

White-tailed Antelope Squirrel
Ammospermophilus leucurus

Underside of tail is white with one dark band. Subspecies vary from grayish brown to cinnamon. Fur i… read more

Nelson's Antelope Squirrel
Ammospermophilus nelsoni

Coloration is generally buff rather than gray. Underside of tail is creamy white. Upperparts are a d… read more

Gunnison's Prairie Dog
Cynomys gunnisoni

Has a gray tail tip with a white border. Head and back are sandy-colored, belly is white. … read more

White-tailed Prairie Dog
Cynomys leucurus

A buff or gray-colored prairie dog with a white tail tip. Has a dark brown spot above the eye and on… read more

Black-tailed Prairie Dog
Cynomys ludovicianus

A large prairie dog with a black tail tip. Contact call between individuals is a “we-oo.” Burrow ent… read more

Utah Prairie Dog
Cynomys parvidens

A small reddish or cinnamon-colored prairie dog with a white tail tip. Burrow entrances are marked b… read more

Northern Flying Squirrel
Glaucomys sabrinus

Back is brown, grayish or tawny; edge of the wing membrane is blackish. Hairs on belly are white at … read more

Southern Flying Squirrel
Glaucomys volans

Hair on the belly is white at both the base and the tip. Back is brown, grayish or tawny; edge of th… read more

Abert's Squirrel
Sciurus aberti

This squirrel has tufted ears and white on the underside of a broad tail. New ear tufts are grown in… read more

Arizona Gray Squirrel
Sciurus arizonensis

A gray squirrel with a black tail that is washed in white above and marked with an orange or rusty-b… read more

Eastern Gray Squirrel
Sciurus carolinensis

A small gray squirrel with a bushy tail edged in white. Belly is whitish. Gray back may have a red-b… read more

Western Gray Squirrel
Sciurus griseus

Largest native tree squirrel along the Pacific coast, this gray squirrel has a long pepper-gray tail… read more

Eastern Fox Squirrel
Sciurus niger

A large squirrel with a bushy tail edged with brown or orangish brown. Usually twice the size of the… read more

Delmarva Peninsula Fox Squirrel
Sciurus niger cinereus

A large tree squirrel. Gray above, whitish below. Large, bushy tail with black stripe on edges. L 21… read more

Uinta Ground Squirrel
Spermophilus armatus

Uniform speckled brownish or grayish back with a grayish undertail. Head and neck are always gray, b… read more

California Ground Squirrel
Spermophilus beecheyi

A large, spotted squirrel with a mantle of light gray running from the ears back onto the shoulders.… read more

Belding's Ground Squirrel
Spermophilus beldingi

Tail is moderately bushy, reddish, and black-tipped. There is a broad, brown band that runs down the… read more

Columbian Ground Squirrel
Spermophilus columbianus

A large ground squirrel with a reddish-brown nose and forelegs. Back is grayish with indistinct buff… read more

Wyoming Ground Squirrel
Spermophilus elegans

A flecked, drab-colored ground squirrel with a buff undertail. Flecks may be pale pinkish buff, clay… read more

Golden-mantled Ground Squirrel
Spermophilus lateralis

A small ground squirrel with a dorsal stripe and well defined golden hood. Head and neck may be gold… read more

Mexican Ground Squirrel
Spermophilus mexicanus

Has nine rows of squarish white spots on its brown back. Larger than I. tridecemlineatus with no sol… read more

Mohave Ground Squirrel
Spermophilus mohavensis

A small spotless squirrel with brownish cheeks and a white undertail. Tail has short hairs and is cr… read more

Arctic Ground Squirrel
Spermophilus parryii

Unique with reddish-brown back that is flecked with whitish spots. Spring-summer pelage is reddish-b… read more

Richardson's Ground Squirrel
Spermophilus richardsonii

A flecked, drab ground squirrel with a white-edged tail. Gray fur is washed with cinnamon buff above… read more

Cascade Golden-mantled Ground Squirrel
Spermophilus saturatus

Small ground squirrel with a dorsal stripe and poorly defined russet hood. … read more

Spotted Ground Squirrel
Spermophilus spilosoma

A small, drab ground squirrel with light spotting and a bushy tail. Some populations are more spotte… read more

Round-tailed Ground Squirrel
Spermophilus tereticaudus

This small squirrel has whitish cheeks, and a darker top of the head. Undertail is buff or cinnamon.… read more

Townsend's Ground Squirrel
Spermophilus townsendii

Small ground squirrel colored plain gray above with pinkish tinge; whitish or buff belly Tail short,… read more

Thirteen-lined Ground Squirrel
Spermophilus tridecemlineatus

Back is marked with 13 alternating stripes that are either solid pale or dashed and dark. Tail and b… read more

Rock Squirrel
Spermophilus variegatus

Has the bushiest tail of any ground squirrel. Back is typically a buff gray, and is marked with flec… read more

Yellow-pine Chipmunk
Tamias amoenus

A mid-sized, yellowish chipmunk. Has brighter colors than the Least Chipmunk, with a reddish (not ye… read more

Gray-collared Chipmunk
Tamias cinereicollis

Prominently marked with gray on the cheeks, shoulders and rump. Dorsal stripes are darker than those… read more

Cliff Chipmunk
Tamias dorsalis

Gray back has indistinct stripes. Center dorsal stripe dark, others faint. White patch behind ears. … read more

Merriam's Chipmunk
Tamias merriami

Large chipmunk with a bushy tail. Contrasting dorsal stripes are light gray and brown. Duller, but v… read more

Least Chipmunk
Tamias minimus

A very small chipmunk. Distinguished from other southwestern chipmunks by small size, dull color, an… read more

California Chipmunk
Tamias obscurus

Large chipmunk with a bushy tail. Head is grayish on top and striped in white on the sides. Back has… read more

Panamint Chipmunk
Tamias panamintinus

read more

Colorado Chipmunk
Tamias quadrivittatus

Has bright, contrasting stripes, a grayish forehead, and orangish shoulders. T. q. australis from so… read more

Red-tailed Chipmunk
Tamias ruficaudus

Has a long tail that is red on the underside. Winter form is paler, but still has red tail. … read more

1-40 of 47 Mammals page: 1  | 2